Neutron time-of-flight ion temperature measurement of direct-drive implosions on SG-II laser facility

Jianlun Yang; Shu Huai Wen; Zhengyuan Tang; Yuzhi Guo; Genxing Wang; Hongqiong Yang; Zhijian Zheng; Zhongli Liu

doi:10.1117/12.425592

23 April 2001 Neutron time-of-flight ion temperature measurement of direct-drive implosions on SG-II laser facility

Jianlun Yang, Shu Huai Wen, Zhengyuan Tang, Yuzhi Guo, Genxing Wang, Hongqiong Yang, Zhijian Zheng, Zhongli Liu

Proceedings Volume 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter; (2001) https://doi.org/10.1117/12.425592
Event: 26th European Conference on Laser Interaction with Matter (ECLIM 2000), 2000, Prague, Czech Republic

Abstract

A geometry-compensated shallow cup-shaped ST1422 plastic scintillator neutron time-of-flight (nTOM) detector has been designed and used on SG-II laser facility to diagnostic inertial confinement fusion (ICF) ion temperature in direct- drive implosions with yields of 10⁸-10⁹ DT neutrons. The measurement system consists of a shallow cup-shaped ST1422 fast plastic scintillator with a thickness of 5mm and full effective volume of 170cm³ placed at a distance of 5.25m from the target, a microchannel plate photomultiplier tube, a piece of coaxial cable with a length of 10m, and a transient oscilloscope with a bandwidth of 4.5GHz. The rise- time and FWHM of the temporal response function are 390ps and 1.47ns, respectively. Measured result for several shots are presented.

Citation Download Citation

Jianlun Yang, Shu Huai Wen, Zhengyuan Tang, Yuzhi Guo, Genxing Wang, Hongqiong Yang, Zhijian Zheng, and Zhongli Liu "Neutron time-of-flight ion temperature measurement of direct-drive implosions on SG-II laser facility", Proc. SPIE 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter, (23 April 2001); https://doi.org/10.1117/12.425592

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